Duplicating apparatus.



` accomplished i will now be described.

. ing in the direction of the arrows or1'snid lo.stY

l members B' B' of the 'UNITED ST1-urns .PATENT OFFICE.

ALBERT o. DICK. 0F CHICAGO, 1I,L1No1s,} Assis Non To A. s; DICK conm NY, or CHICAGO, ILLINoIs, A'ooRPoRATIoN 0F iLLINois.l

To all whom it may concern:

Beit known that I, ALBERT B. DICK, aoiti zon of the United States, residing at Chicago," in the county of Cookand State oi Illinois, have invented s, certain new and useful 11nprovement in Duplicating Apgaratos, of which the following is a. specification.

This invention relates generaily to eppstr'ai tus for the duplication of written or type# written matter, and particularly to that type voisuoli npparatusin which is employed Va revoiuble drum, upon the silrfac whereof a stencil-sheet is snit'abiy suppo ink be ing fed through the intcrstices thereinito'tiie impression-paper with which thepriphery of sur-b rlrnnus brought into contact.

" 'lhe obiect of the inventionis toperfeet duplicagin i nippnrotus of the tfpe referred to, particu or with respect to t 1e feeding of the impression limpor to the drum, angl this is i a highly-- etlrient 'manner und without unnecessary romplicationn the present emlmdiment of' the invention, which In the drnwinggFigm-e 1 is n side view of a, duplicating apparatus employinvfmy lavoro tion. Fin'. 2 is o pion view on theiino 2 2, Fig. l, and'loo ing iu the direction of tho arrows on the inst-named fifure. Fig. 3 is a central cross-section on the line 3 3, Fig. 2, and looknomod figure. Figs. 4 and 5 are sertiona Y details illustratiog'cert-nin steps in'tlie fer-L ing ol un impression-sheet for vonclion with the stencil on the drum oLtho machine, und Fig. 6 is o detail view of nl latch mechanism hereinafter xicrihed.

leferrin to the drawings, in which similar lett-ors t emite eorrcsponlling parts, A (iesignntos the base of the mnoliine, u on Whirh ore supported the aide Haines B B inwhiel; is journnled at c the drum C, comprising than lic-ods e" and a stencil-collier c, of forairii'- noted nmtoriol, mlnptod `to support aiiliriiiig-fYV pod c, luld in position by bars c, anroer wliirli paul is plnood tino stencil oi' wox'edipof per or other motorini, the forward :initiiereol' boing scoured un the drum b menig' Y(ritiro studs e und the rearward enl b heii'ux clam c'. (Ine of the drumheo Ys pre- -vidi with e pinion D, which meshes with a similar pinion d supported by the frume DuPucA'rmG APPARATUS.

Letters Tetsnt.

19M. Serial lo. 227.181.

d'. -Said drumhead c' also carries a cam c, sbingyitire sheoye e a1-rind by a vertiaiIy-reeiprocating bar J, normally held in its uppermost osition' and ngainst aid'cam e is any suitab e meons;suci1 as the spring s, as ereinfter described; Said reeiproeetmg bar E is; guided and held in pinee'etits'o per Yeobs. bifurcation, within which' the' s ioft 'j oiftlo'drum is received. i

latented Horch 20, 1906.

Y Y i Vetesii-eross-rod extendin between ,and connecting the side members' B of the frane: iexnted upon this erop Vp'ersst'ops j, here Vshown as havin setserews j", by Ineens whereof they may e'adiusted upon sid'cros-rod. Each of said {raperstops ,is `provided withe vvertical fofard edge f and with a. proictinfr lip j, the ur- Eoso whereof will resently explane ve shown two o :these poperstopsinthe present embodiment of tliexnvention, but it varied@ desired; Y Glesi te; a roelrshaft fjoumeled' et either inftheside members VIi B' ofthe frame. gxclshaft is here slovgnl uY e aperhs to s Y u Vt eonstruetioo maybe gxoiedgi leso-sii, the

interferenoo between them un shaft; YAtiiusieil odjacentto each ein! off'ioeke ft Gand within the side TheV vertically-oscillating box-E is pivoted at It to the arm H, as cleorlyshown in 1. Seid rui H is provided'wlth 4on extension L' Y having a link .fornication t* with om simo oi the e elometer h. Pivoted also upon said arm is e pinion I, meshing'with e' similar inion 1'., pivoted ot i to the yertieeiiposeil- `liifmgrirol E and to which motion astronoby the Ypinion D. Mounted upon the in said-'hu is one end of e sluit'y, the

otberend whereof ijumaied is s, bearing in the erm H', soid'sh 'carrying the pressure,- -rvlilli'er-l;YV A `1" Kiieignateo the feeder herskown escom- Ypoging-g ma i, a portion heme-1.1, srubber. eaovered, and this'rod is'sppertod at its ends in brackets L L', loosely mounted!! o .the ,shuftj of the pressure-miler J. The "et L is provided with on extension l, lyin parollol withY tiiowliulze lof the inion I, au this pliiti-.B und to w iicil movement is transmitted-os, for instance, by means of the crank will be understood that the number rnay be.

extonion forms port of a etch mechanism,

(best shown in Fig. 2 and in Fig. 6. )which is au inner face view of' the pinion I. This nicchanism comprises the lever l', pivotcd to the inion I`at l* and having the handpicce l.

he latch end of said lever is provided with` an angular extension Z, adapted to coact with a slit formed in the extension l of the t bracket L.

.The operative position of the feeder K is illustrated in the drawings.

order to throw the same to inoperative positiori,;it is only necessary to move the lever l uponits ivot lf, whereu )on the extension I* bein wit drawn from t ie slit iii the extension of the bracket L the movement of the inion will not be transmitted to the feeder,

ut the same will remain idle.

In order that the machine a a whole may be thrown at will to operative or inoperative x position; I provide a cam-lever M, pivotcd at m to the frame-plate B. This lever is provided with the cam m', which coacts with a stud mr', formed on the lower end of the vcrvticalIy-'oscillating bar E. Theopcrative, po-

sition of the parts is illustrated in Fig. 1. To throw the machine to inoperative position, it

is only necessary to depress the cam-lever M,

whereu on the bar E will be lowered out of the pat of the cam e upon the drum, and

this corres Q ndingly depresses the pressureroller J, w ose coaction with the drum is cssential to the production of copies.-

,N designates the feed-board. This is de- "itcuding, as shown m Figs. 4 and 5, to the i tachabl mounted in odcrthat it may be resipgthqugt'the S'igllefraxne B)is provided first port-'on of the id i t Awith a'arank-arnrn/(i uppermost 'sheet of dusting device' rtf.

5o a'nd connecting the. rank-arm n* and the cam-l moved rom the position in which it is shown in the drawings and placed in anew position to ada 't the machine for hand-feeding, a t'eature which is not made the subject of this application.' As herelshown, the feed-hoard N is provided with pcrforationsn, adapted to receive studsA n', carried b a rock-bar n, pivotall mounted at nin. t ie side members B Bf o tliefraine. One of the pivots n. (that e suclisl ef n pnthe lower enfL ;wich is secured au add spring n for the p ur- 3 ing pressure to the feedapplying f "ffii n designates a qveriextcndmg between lever M. When, .tcrefore, the free end of said cam-lever itdepressed. to thi-mathe ma, chine as a wholevtotino erlativeposition, the forward end of the feet yhoard.. (adjacent Ato tictstopsf) is depressed, Intthc position of t ie war movement of the forward-.end of said feed-board or of the pa er-pile carried thereon is limited by the lips f of said aperstops; but in order to compensate for t ie d` minishing thickness of the paperpile, th` pressure of the sprii ln is provided., '"'lhe feed-board i is preferably,provided with an adjustable end guide 0 and a similar side guide 0' for the paper-pile O. 1-Itsnupparts illustrated in theilrawings the upf l l` per surface is also provided with a facing l), of ruhbcrorothcr suitable nnitcrial.at a point 1 directly under the pressure-roller J, this being the point of coaction of the feeder li with Said pilc. Said board is also provided with another and similar facing P', rearward of the facing l. for the purpose presently to be described.

In order to assure reliable feeding and to assist in Ille buckling of the uppermost sheet, i which is an inc'dcut of such feeding. I pro- `Vide tlrc feed-hoard with au adjustable ressurc device, here shown as comprising a iiar lt directlyv o\'erl \'iug the rubber facing l. and to which are sccul'ed arms r r, provided i at their ends with pins r'. ada )ted to be received in oriliccs ll ri, former in the feedboard. Of said orifices there may be any dcl sited number in order that the position of thc pressure device may bc varied at will. (ar l ricd loosely by the arms r r nud adapted to l sl'de thereon is a weightI lt'. (llere lshown as having handpicce IP.) Said weight may be conveniently made of two metallic bars sccured together by screws on either side of the 1 arms r r, or, if desired, the haudpicce It2 muv l take thc form of a nut-coasting with a' bolt projecting u iwardly from the lower member iol the weigit, thus making it possible to 1 clamp the weight in position aftcrit has been l adjusted. ,'lhe pressure device bears downi \vardl v upon the paper-pile, the bar l exwint at. which Vthe impression-sheet is buci lcd. This operation will rcadilv be understood from said figures. After the feeder K has been locked in o wrativc position (in which it is shown in-al of the igurcs) and movement applied to the drum such moveliicnt is transmitted through the pinions i ,and I to said feeder, which thereupon rel vulves around.thc pressure-roller 'l`hc o aeration of feeding the t. ie pile is illustrated in ltl'g. 3. llcrc the feeder has seized the lforward edge of the upperumst sheet and is pressing the same rearwardly. ln Ffg. 4 the sultcd in the buckling of such uppermost sheet, while in Fig. 5 it has passed out. of engagement with the sheet and the latter has sprung upwardly and against the pressureroller J. 'lllis is the position occupied h v the sheet just before the stencil-covered periphery of the druln comes intoengagement. with the pressure-roller. When sa'd partsl come g into engagement, the impression-shcct is i gri )peil between the drum aud pressurerol er and fed along between the same, the f upward pressure of tbc pressure-roller rcsulting in impressing upon the sheet the characters previously cut upon the stencil and through which the ink is fed from the pad e. lly reason of the construction of thcrpa eri stopsjf and of the provision of yieldinrg p 'es- Uf, M y

llO

continued movement of the feeder luis re-` dirmi Y pr smi? :a shea-1.,;

Vandhaving arms, means n up mg apparatus, w mmninmm a, and u rum Sap;

@rating mami i ,LL

ffxareon, said device cemprsing an adjustabe i as svt forth.

This spot-i'cntinn sivned and witnessed this tltli my nt' Septemuer, 1904.

ALBERT B. DICK. Witnvsses:

.\I. Il. BURKART, l. li, HARRINGTON. 

